NVIDIA GeForce GTX 660 Rev. 2 's Advantages
320 additional rendering cores
NVIDIA T600 's Advantages
Released 6 years and 7 months late
Boost Clock has increased by 29% (1335MHz vs 1032MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 144.2GB/s)
Lower TDP (40W vs 140W)